South Australian Independent MLC Ann Bressington says injured workers have been harassed, bullied and intimidated under WorkCover, with some committing suicide.

The State Government has proposed amendments to the compensation scheme, including changes to the board's make-up.

Ms Bressington told State Parliament's Legislative Council the planned changes do not not address fundamental problems with WorkCover.

She said that injured workers are regarded as nothing more than "pieces of meat" and described the proposed amendments as a "crappy piece of legislation."

"Rarely do we want to talk about, or even put on the record, about injured workers committing suicide because they are harassed, bullied, intimidated, dragged through years and years and years of litigation rather than get what they are rightfully entitled to," she said.

"Does anybody honestly believe that the changes [the Government] has proposed about a reduction in the number of the board, or the composition in the board, [are] going to change this culture within WorkCover - that injured workers are nothing more than a piece of meat?"

WorkCover covers 430,000 South Australian employees in 50,000 businesses.

Attorney-General John Rau last week admitted there were fundamental problems with the scheme.

It has unfunded liabilities of about $1.4 billion and achieves one of the lowest return-to-work rates in the nation.

Ms Bressington's comments followed separate criticisms of the scheme by South Australia's Law Society.